Home / 10,935.72-15,091.15-6,155.64

Finding the Fourth Proportional to 10,935.72, 15,091.15 and 6,155.64

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Solution

The fourth proportional to 10,935.72, 15,091.15 and 6,155.64 is: 8,494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.72 : 15,091.15 = 6,155.64 : x
  2. Step 2: Convert to fraction form
    10,935.72/15,091.15 = 6,155.64/x
  3. Step 3: Cross multiply
    10,935.72x = 15,091.15 × 6,155.64
  4. Step 4: Simplify right side
    10,935.72x = 92,895,686.59
  5. Step 5: Solve for x
    x = 92,895,686.59/10,935.72
  6. Step 6: Final answer
    x = 8,494.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.